There are numerous species of poisonous snakes in the world, and they can be found on almost every continent. Some of the most well-known poisonous snakes include:

  1. Cobra: Cobras are a group of venomous snakes that are found throughout Africa and Asia. They are known for their iconic hood, which they flare when threatened.

  2. Rattlesnake: Rattlesnakes are found throughout North and South America and are known for their distinctive rattle, which they use to warn potential predators.

  3. Taipan: The taipan is one of the most venomous snakes in the world and is found in Australia and parts of Southeast Asia.

  4. Black mamba: The black mamba is one of the fastest and deadliest snakes in the world. It is found in Africa and is known for its aggressive behavior.

  5. Coral snake: Coral snakes are found in the Americas and are known for their brightly colored bands. They have a potent venom that affects the nervous system.

  6. Copperhead: Copperheads are found in North America and are known for their distinctive copper-colored head. Their venom can cause serious tissue damage.

  7. Viper: Vipers are a group of venomous snakes found all over the world. They have long fangs that fold back when not in use.

It is important to note that not all poisonous snakes are deadly to humans. However, if you come across a snake in the wild, it's best to leave it alone to avoid any potential danger.